The only sources for this union are the half-yearly reports (MSS.39/SO/4/1/1a), from 1900 to 1902 only.

Branches

The union only operated in London until 1901, when it also formed branches in Birmingham, Bradford, Cardiff, Leeds, Leicester, Liverpool, Manchester, Nottingham and Reading. A branch was also formed in Gravesend in 1902.

Full membership lists

The report for the second half of 1900 lists all existing members in card number order. The report for the second half of 1901 lists all existing members of the London Branch only.

Members "erazed"

The names of members who left or were expelled for any reason are listed in each report. In the 1901 reports their employer is also listed.

Deceased members

The names, ages, employers and date and cause of death of deceased members are listed in each report.

The deaths of members' wives are also recorded. The name is that of the member, not his wife, and ages are not listed.